448381567 has 2 divisors, whose sum is σ = 448381568. Its totient is φ = 448381566.

The previous prime is 448381529. The next prime is 448381649. The reversal of 448381567 is 765183844.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-448381567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (448381667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224190783 + 224190784.

It is an arithmetic number, because the mean of its divisors is an integer number (224190784).

Almost surely, 2^448381567 is an apocalyptic number.

448381567 is a deficient number, since it is larger than the sum of its proper divisors (1).

448381567 is an equidigital number, since it uses as much as digits as its factorization.

448381567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 645120, while the sum is 46.

The square root of 448381567 is about 21175.0222431997. The cubic root of 448381567 is about 765.3896470035.

The spelling of 448381567 in words is "four hundred forty-eight million, three hundred eighty-one thousand, five hundred sixty-seven".